Pharmaceutical compound



Patented Dec. 26, 1922..

uaurs STATES JPATENT @FFEQE.

RUDOLF BERENIDES AND WILHELIVI GRfiTTEFIEN, F ELBERFELD, GERMANY, ASSIGNORS TO FARBENFABRIKEN VOBIVI. FRIEDR. BAYER AND 00., OF LEVERKUSEN, NEAR COLOGNE-ON-THE-RHINE, GERMANY.

PHARMACEUTICAL COMPOUND.

No Drawing.

To all whom it may concern:

Be it known that we. RUDoLF BERENDES and WILHELM' GRI'iTTEFlEN, citizens of Germany, residing at Elberfeld, Germany, have invented new and useful Improvements in a New Pharmaceutical Compound, of which the following is a specification.

W e have found that a new and therapeutically valuable compound can be obtained by treating the calcium salt of glutaminic acid with calcium bromid.

()ur new product is after being dried at from 90 to 100 centigrade a whitish salt of neutral reaction a d an agreeable taste. It

is easily soluble in water and contains'upon one molecule of glutaminic acid, 1 atom of bromin, 1 atom of calcium and 1 molecule of water of crystallization. It has proved to be a valuable sedative.

In order to illustrate the. process more fully the following example is given, the parts being by wei ht:

A solution of 14 parts of glutaminic acid in 1000 parts of hot water is saturated wlth Serial No. 528,832.

55 parts of carbonate of calcium. To the filtered liquid an aqueous solution of 105 parts of.bromid of calcium is added and the resulting solution evaporated.

Our new compound separates in crystals which are filtered off and washed with a 50 0 per cent alcohol.

We claim The herein described new compound of glutaminic acid with bromid of calcium, which is after being dried at 90100 centigrade a whitish salt of neutral reaction and an agreeable taste; being easily soluble in water'and being a valuable sedative, substantially as described.

In testimony whereof we have hereunto 40 set our hands in the presence of two subscribing witnesses.

HANS BRt'IoKNER, HERMAN}? WEYLAND. 

